Article
Environmental Sciences
Daijun Zhang, Xinkuan Han, Shangbo Zhou, Shupei Yuan, Peili Lu, Shuchan Peng
Summary: The study demonstrated that microorganisms could efficiently degrade PAHs using NO in denitrification processes, providing a new perspective for the remediation of PAH pollution. Analysis of microbial community structure revealed that Pseudomonas and Ochrobactrum played key roles in NO-dependent phenanthrene degradation system.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Multidisciplinary Sciences
Yusuke Nakakuki, Takashi Hirose, Hikaru Sotome, Min Gao, Daiki Shimizu, Ruiji Li, Jun-Ya Hasegawa, Hiroshi Miyasaka, Kenji Matsuda
Summary: Helically twisted conductive nanocarbon materials are suitable for optoelectronic and electromagnetic molecular devices on the nanometer scale, showing a large effective conjugation length and ultrafast decay dynamics. The extended π-helicenes achieved a large effective conjugation length through helical fusion, leading to an absorption edge in the near-infrared region.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Xiushang Xu, Amy L. Vonder Haar, Rengo Yoshioka, Qizheng Zhang, Serhii Vasylevskyi, Andrew J. Musser, Akimitsu Narita
Summary: A benzo[rst]pentaphene derivative, BPP-MeOPA, was synthesized and characterized by NMR and single-crystal X-ray analysis. Investigation of its photophysical properties, including transient absorption spectroscopy, revealed improved absorption and emission features from an S-1 state with excitonic and charge-transfer character by introducing MeOPA groups.
CHEMICAL COMMUNICATIONS
(2023)
Review
Environmental Sciences
Meng Qiao, Weixiao Qi, Huijuan Liu, Jiuhui Qu
Summary: Oxygenated polycyclic aromatic hydrocarbons (OPAHs) have higher concentrations and toxicity in water environments, posing significant ecological risks to surface water ecosystems.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Virginia Echavarri-Bravo, Houari Amari, Jennifer Hartley, Giovanni Maddalena, Caroline Kirk, Maarten W. Tuijtel, Nigel D. Browning, Louise E. Horsfall
Summary: Large scale recycling of lithium ion batteries (LIBs) is crucial for obtaining raw materials and implementing clean energy strategies. However, efficient and sustainable recycling methods for LIBs are yet to be developed. This study demonstrates a sequential process using two bacterial species to recover manganese, cobalt, and nickel, while keeping lithium in the leachate. The feasibility of manganese recovery from polymetallic solutions was also shown in a 30 L bioreactor. Additionally, proteomic analysis was used to investigate the selectivity between cobalt and nickel, confirming the potential of a bio-based method for separating these metals.
Article
Chemistry, Organic
Yushi Ohno, Shogo Ando, Daisuke Furusho, Ryoyu Hifumi, Yuuya Nagata, Ikuyoshi Tomita, Shinsuke Inagi
Summary: Here, a facile and selective synthesis of cationic azatriphenylene derivatives was achieved through electrochemical intramolecular cyclization, where the key step involves atom-economical C-H pyridination without a transition-metal catalyst or an oxidant. This proposed strategy provides a practical approach for introducing cationic nitrogen (N (+)) into pi-electron systems, thus expanding the molecular design of N (+)-doped polycyclic aromatic hydrocarbons.
Article
Chemistry, Inorganic & Nuclear
Huimin Zhong, Cong Jiang, Jiahui Zou, Guancheng Zhu, Yanyan Huang
Summary: In this study, CeO2-based porous carbonaceous frameworks (CeO2 PCFs) were used as antioxidant nanozymes to scavenge reactive oxygen species and absorb benzo[a]pyrene. CeO2 PCFs exhibited excellent superoxide dismutase-like and catalase-like activity, effectively eliminating superoxide radical, hydroxyl radical, and hydrogen peroxide. The 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) free radical scavenging assay confirmed the free radical scavenging ability of CeO2 PCFs. Furthermore, CeO2 PCFs with large surface area and porous structure efficiently adsorbed benzo[a]pyrene. The designed CeO2 PCFs can serve as new antioxidant nanozymes for scavenging reactive oxygen species and adsorbing polycyclic aromatic hydrocarbons (PAHs).
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Thomas Liu, Baptiste Carles, Christine Elias, Claire Tonnele, Daniel Medina-Lopez, Akimitsu Narita, Yannick Chassagneux, Christophe Voisin, David Beljonne, Stephane Campidelli, Loic Rondin, Jean-Sebastien Lauret
Summary: In this study, we conducted single-molecule spectroscopy at cryogenic temperatures to investigate the optical properties of graphene quantum dots (GQDs). We found that temperature has an effect on the spectral characteristics of GQDs, and we used density functional theory calculations to explain these observations. Additionally, we discovered that the vibrational features can serve as a unique fingerprint for identifying GQDs.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Environmental Sciences
Jiaxing Lu, Zizhang Guo, Mengting Li, Peng Dai, Mingyu He, Yan Kang, Bo Sun, Jian Zhang
Summary: Manganese dioxide (MnO2) with nanoflower morphology and high concentration of oxygen vacancies showed enhanced removal performance of polycyclic aromatic hydrocarbons (PAHs) in aqueous phase. The removal mechanism involved oxidation by non-radical Mn species and superoxide radical (O-2(-center dot)), leading to the formation of degradation products. The synergistic effects of oxygen vacancy and Mn3+ promoted the efficient degradation of PAHs.
Review
Environmental Sciences
Jamie M. Dearnley, Charles Killeen, Rebecca L. Davis, Vince P. Palace, Gregg T. Tomy
Summary: This article reviews the metabolism and toxicity of polycyclic aromatic compounds (PACs) in fish and presents various methods for analyzing metabolite-containing bile. Recent environmental monitoring studies demonstrate the utility of this technique in assessing oil spill pollution, establishing baseline exposure, and evaluating pollution in urban waterways.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Ilaria Sorrentino, Marie Carriere, Helene Jamet, Ilaria Stanzione, Alessandra Piscitelli, Paola Giardina, Alan Le Goff
Summary: We investigated the use of POXA1b laccase from Pleurotus ostreatus for the oxidation of anthracene into anthraquinone. Different pathways can occur depending on the redox mediator combined to laccase, leading to different isomers. Carbon nanotubes were shown to act as redox mediators for anthracene oxidation into 9,10-anthraquinone, which was corroborated by theoretical calculations. The efficient adsorption of anthraquinones at CNT electrodes allows for low limit-of-detection of anthracene using laccase in solution, CNT-supported laccase, or laccase immobilized at magnetic beads.
Article
Environmental Sciences
Punniyakotti Parthipan, Liang Cheng, Perumal Dhandapani, Punniyakotti Elumalai, Mingzhi Huang, Aruliah Rajasekar
Summary: In this study, the degradation efficiency of mixed PAHs, especially anthracene, pyrene, and benzo(a)pyrene, was enhanced by using a biosurfactant and iron nanoparticles. The biosurfactant increased the bioavailability of PAHs in the aqueous environment, promoting bacterial settlement and growth. Iron nanoparticles increased bacterial biomass and PAHs adsorption, facilitating PAHs utilization by the bacterial consortia.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Jiaxing Lu, Jian Zhang, Huijun Xie, Yuming Jing, Mingde Ji, Zhen Hu
Summary: In this study, a novel wastewater treatment process combining sequencing batch reactor, constructed wetland and microalgal membrane photobioreactor (BCM process) was proposed. The process achieved satisfactory removal of polycyclic aromatic hydrocarbons (PAHs) and their substituted derivatives (SPAHs), and significantly reduced bacterial toxicity and genotoxicity. Microalgae played an important role in ensuring water security.
Article
Engineering, Environmental
Yurong Ma, Hongyun Niu, Yaqi Cai, Ting Luo, Junya Zhu, Meng Chen, Jun He, Zixuan Liu, Xiang Gu, Chang Yin
Summary: In this study, a new adsorbent Fe3O4@Au@DTC NPs was prepared and utilized for the enrichment of polycyclic aromatic hydrocarbons in water samples. The adsorbent showed high enrichment efficiency, low detection limits, and achieved high spiked recoveries for PAHs in river water and tap water samples.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Environmental
Yurong Ma, Hongyun Niu, Yaqi Cai, Ting Luo, Junya Zhu, Meng Chen, Jun He, Zixuan Liu, Xiang Gu, Chang Yin
Summary: In this study, a novel adsorbent Fe3O4@Au@DTC NPs was synthesized for the enrichment of polycyclic aromatic hydrocarbons in water samples, demonstrating good extraction efficiency and high recovery rates.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Organic
Ana Sirvent, M. Jesus Garcia-Munoz, Miguel Yus, Francisco Foubelo
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2020)
Article
Biochemistry & Molecular Biology
Fabian Santana-Romo, Carlos F. Lagos, Yorley Duarte, Francisco Castillo, Yanina Moglie, Miguel A. Maestro, Nitin Charbe, Flavia C. Zacconi
Article
Chemistry, Organic
Sandra Hernandez-Ibanez, Olga Soares do Rego Barros, Alejandro Lahosa, Maria Jesus Garcia-Munoz, Meriem Benlahrech, Cherif Behloul, Francisco Foubelo, Miguel Yus
Article
Chemistry, Multidisciplinary
Javier Garcia-Pardo, Fernando Novio, Fabiana Nador, Ivana Cavaliere, Salvio Suarez-Garcia, Silvia Lope-Piedrafita, Ana Paula Candiota, Jordi Romero-Gimenez, Beatriz Rodriguez-Galvan, Jordi Bove, Miquel Vila, Julia Lorenzo, Daniel Ruiz-Molina
Summary: This study demonstrates the synthesis of neuromelanin bioinspired polymeric nanoparticles for encapsulating DA with high loading efficiency. In vitro, the DA-NCPs showed lower toxicity and enhanced uptake by dopaminergic cells compared to free DA. In vivo, nasal administration of DA-NCPs increased striatal DA levels and reduced apomorphine-induced rotations, highlighting the potential of nanostructured DA for DA-replacement therapy.
Article
Chemistry, Multidisciplinary
Luciano A. Benedini, Yanina Moglie, Juan M. Ruso, Sofia Nardi, Paula Messina
Summary: This study evaluates the chemical grafting of phosphorous amide and alpha-amino phosphonate molecular fragments on previously created biomimetic hydroxyapatite nanoparticles, providing a new application for the liquid crystal properties of biological molecular networks. The results demonstrate that under specific synthetic conditions, it is possible to obtain nanoparticles that act as mesogenic agents and self-assemble under pH stimulation.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Yanina Moglie, Evangelina Mascaro, Flavia Zacconi, Gabriel Radivoy
Summary: Copper nanoparticles supported on ZnO exhibit high activity and selectivity in the N-arylation of cyclic and acyclic amides, with mild reaction conditions and the ability to be reused multiple times without significant loss of activity. The methodology can also be successfully scaled up to gram scale without diminishing catalytic activity.
Review
Chemistry, Multidisciplinary
Diego F. Rodriguez, Yanina Moglie, Cesar A. Ramirez-Sarmiento, Sachin Kumar Singh, Kamal Dua, Flavia C. Zacconi
Summary: The fields of click chemistry and biocatalysis have grown rapidly, leading to significant interactions between these two fields. Bio-click chemistry, which combines biocatalytic enzyme activity with click reactions, offers a green and sustainable approach for the synthesis of high-value molecules, particularly chiral molecules with applications in medicinal chemistry and sustainable syntheses.
Article
Pharmacology & Pharmacy
Diego F. Rodriguez, Francisca Duran-Osorio, Yorley Duarte, Pedro Olivares, Yanina Moglie, Kamal Dua, Flavia C. Zacconi
Summary: Implementation of green chemistry has shown promising results in waste reduction in the pharmaceutical industry. However, sustainable development of pharmaceutically active compounds and ingredients remains challenging. In this study, a green synthesis method was used to produce pharmaceutically active peptide triazoles as potent factor Xa inhibitors, important drug targets for cardiovascular diseases. The synthesis involved cycloaddition reactions with high atom economy, microwave-assisted organic synthesis for energy efficiency, and copper nanoparticle catalysis with Earth-abundant metals. The synthesized molecules demonstrated FXa inhibition with low IC50 values and no cytotoxicity in HEK293 and HeLa cells, highlighting the environmental potential and chemical implications of the applied methodologies for new molecule development.
Article
Biochemistry & Molecular Biology
Jose J. Delgado-Marin, Iris Martin-Garcia, David Villalgordo-Hernandez, Francisco Alonso, Enrique Ramos-Fernandez, Javier Narciso
Summary: One potential way to utilize CO2 is to react it with organic epoxides to produce cyclic carbonates. However, no efficient and selective heterogeneous catalyst has been discovered yet. In this study, cobalt and zinc-based zeolitic imidazole frameworks (ZIFs) were explored as catalysts for this reaction. Modified ZIF-8 and ZIF-67 catalysts were prepared and showed excellent catalytic performance in the cycloaddition of CO2 with epichlorohydrin. Notably, these reactions occurred under mild conditions without the need for co-catalysts.
Article
Chemistry, Multidisciplinary
Juan Jose Calmels, Leandro Aguilar, Juan Mancebo-Aracil, Gabriel Radivoy, Claudia Domini, Mariano Garrido, Miguel D. Sanchez, Fabiana Nador
Summary: This study presents the synthesis and characterization of new dyes based on indolizines with catechol groups. The synthesis was carried out through a simple one-pot reaction promoted by CuNPs/C. The products showed a wide range of colors and an ability to respond to acidic and basic conditions, making them attractive candidates for pH indicators.
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Matias Capurso, Gabriel Radivoy, Fabiana Nador, Viviana Dorn
Summary: Density functional theory (DFT) calculations were used to study the hydrothiolation reaction between activated alkynes and thiols with a catechol group. The reaction was efficiently catalyzed by a CuNPs/TiO2 nanocatalyst, resulting in the formation of anti-Markovnikov vinyl sulphides with high Z-stereoselectivity. The proposed reaction mechanism suggests the activation of the carbon-carbon triple bond followed by a stereoselective nucleophilic attack, and the TiO2 support plays a synergistic role in the catalytic process.
Article
Biochemistry & Molecular Biology
Mahzad Yaghmaei, Martin Villanueva, Iris Martin-Garcia, Francisco Alonso, Xiaocong Zhang, Neeraj Joshi, Anabel E. Lanterna, Juan C. Scaiano
Summary: Selective semi-oxidation of tetrahydroisoquinoline (THIQ) can be achieved through singlet oxygen photooxidation process, leading to a valuable dihydroisoquinoline (DHIQ) derivative. Photosensitisers can activate the reaction even under heterogeneous conditions and can be combined with semiconductor catalysts to improve reaction efficiency and catalyst separability and reusability.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2022)
Article
Chemistry, Physical
Iris Martin-Garcia, Gloria Diaz-Reyes, George Sloan, Yanina Moglie, Francisco Alonso
Summary: Sulfur has been found to be an effective stabilizing agent for copper nanoparticles, allowing for their application in organic medium catalytic reactions; The Cu(2)ONPs/S-8 system shows promising results in solvent-free aerobic oxidation of primary amines to imines, with potential for various applications; A proposed reaction mechanism based on experimental evidence provides insight into key intermediates, suggesting new research avenues in nanocatalysis.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Fabiana Nador, Juan Mancebo-Aracil, Duham Zanotto, Daniel Ruiz-Molina, Gabriel Radivoy
Summary: The hydrothiolation of activated alkynes is a powerful method for functionalizing thiols bearing catechols, using a heterogeneous catalyst composed of copper nanoparticles supported on TiO2. The reaction shows regio- and stereoselectivity towards anti-Markovnikov Z-vinyl sulfide and the catechol derivatives obtained can be used as ligands in the preparation of coordination polymer nanoparticles.
Article
Chemistry, Organic
Fuying Zhu, Yamei Lin
Summary: In this study, a low-metal iron-supported catalyst (Fe20/NC-Mg) was reported for the efficient synthesis of quinoxaline compounds, using water as a solvent and without additional bases. The synergistic effect of FeNx site and Mg (OH)2 nanorods in the catalyst played a key role in achieving high yields (82-91%) in 16 examples. The gram-level synthesis and reusability of the catalysts after four cycles demonstrated its industrial application potential.
Article
Chemistry, Organic
Mikhail Kozlov, Alexey Tyurin, Andrey Dmitrenok, Vyacheslav Rusak, Aleksander Fedorov, Igor Zavarzin, Yulia Volkova
Summary: This study presents a novel and practical synthesis method for phosphorus-substituted 1,3,4-thiadiazolines using phosphorylthioformic acid hydrazides and ketones. The protocol demonstrates operational simplicity, availability of reagents, and tolerance towards different functional groups.
Article
Chemistry, Organic
Jisna Jose, Thomas Mathew
Summary: 2-Cyclopentenone and its derivatives are highly esteemed synthetic intermediates with exceptional utility in organic synthesis. They are favored structural motifs in numerous pharmaceutical drugs and natural products, highlighting their significance. The review discusses the various methods used to synthesize cyclopentenones from 2016 to 2023.
